| A | B |
|---|
| equipment grounding conductor | used to connect equipment to panel |
| grounding electrode | direct connection to earth |
| sizing of equipment grounding conductor | Article 250.122 |
| sizing of grounding electrode conductor | Article 250.66 |
| rod and pipe | type of electrode |
| ground | the earth |
| bonding | joining of metal parts |
| system grounding | grounding electrical panel to the earth |
| equipment grounding | bonding the equipment to the panel |
| metal underground gas pipe | not permitted for a grounding electrode |
